Island



J. C. SHAMBOW.-

TTTTTT E.

APPLICAHO FILE NOV.l5. 1918- I 1,324,932. Patented Dec.16,1919

sra rns rarnivr orFr JOHN c. snannowor woolvsocxnr, nrronn ISLAND,Assreivon. ro'sHAMBowsHU'rmnn CGMPANY,'0FVT OON SOCKET, RHODE ISLAND,A:CC)PA33H.NECIRSIIIP.v

SHUTTLE.

To all whom it may concern:

Be it known that I, JOHN C. SHAMRQW, a citizen of the United States,residing at Voonsocket, in the county of Providence and State of RhodeIsland, have invented a new and useful Improvement in Shuttles, of whichthe following is a specification.

This invention relates to certain new and useful improvements inshuttles andpertains more particularly to an improved form of means forpr venting unthreading of the shuttle by reason of ballooning.

The object of the invention is to provide a simple form of means whichcan be easily, economically and quickly produced and applied to theshuttle.

In brief, the invention proposes to provide a device for preventingunthreading which may be formed of a plate or piece of sheet metal andwhich may be applied to the shuttle and held in its relation theretosolely by frictional contact of the sheet metal plate with the wood ofthe shuttle.

In the drawings Figure l is a topplan view of the invention applied to ashuttle, the latter shown in fragment.

Fig. 2 is a longitudinal sectional view of Fig. 1 showing the device inside elevation and Fig. 3 is a side view of the device.

In proceeding in accordance with the present invention the device isformed from sheet metal or a metal plate preferably with a somewhatrounded bottom 1 and an arm 2 terminating in a contracted finger 3 whichis spaced from the arm and which terminates above the end 42 of the base1, so as to provide a somewhat C-shaped configured guard. The other endof the arm 2 is formed with an inclined edge 5 so that the thread mayeasily ride down the same. The arm 2, finger 3 and the end l of the base1 provide an eye .6 through which the thread is passed.

As depicted in Fig. 2 of the drawings the finger 3 is deflected or bentso as to extend toward the bobbin receiving cavity C and the freeextremity of the finger projects into a somewhat cup-shaped depression 7formed to the rear of a slot 8, the slot 8 extending transversely acrossthe shuttle and. being formed of such size so that the plate can bedriven into the slot and held by frictional contact with the walkdefining the slot. The

Specification of Letters Patent.

shuttle otherwise is provided with the throat Patented Dec. 16, 1919.Application filed November 15, 1918. Serial No. 262,733.

T and a threading slot S which leads into the usual delivery eye E atthe outer side of the shuttle. V

In operation, the thread is placed on the inclined edge 5 and then moveddownwardly through the throat T and threading slot S so as to passbeneath the free end of the finger 3, and into the eye 6. The depression7 it will be observed from Fig. l is located to one side of the throat Tand since the free end of the finger projects into the depression 7 itwill be seen that accidental unthreading of the shuttle is almostimpossible due to the fact that the thread in order to disengage itselffrom the device must move down into the depression 7 and then upwardlyfrom under the finger 3, and as just stated-due to the parts 3 and '7,being located to one side of the normal line of travel of the threadaccidental unthreading is rendered almost negligible.

The device can easily be stampedout of sheet metal plates and driveninto position, so that extraneous fastening means are not required.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is 1. In a shuttle, a shuttle body having athroat and a threading slot, and being provided with a substantiallycup-shaped depression to one side of the throat and also having a slotextending across and between the depression and'the shuttle deliveryeye,

and a plate-like guard formed to be driven into said transverse slot andhaving an arm provided with a finger the extremity of which latter isspaced from the adjacent part of the guard to form a thread receivingeye, said finger. being deflected so as to extend partly into thecup-shaped depression,

and the top edge of the arm being inclined and merging into the finger.

2. In a shuttle, a shuttle body having a throat, a threading slot, atransverse slot,

and also a depression to the rear of the ing eye located adjacent thedepression and having a portion thereof extending part-1y into thedepression.

In combination with a shuttle having a transverse slot and a depressionadjacent thereto, a guard received in the slot and having a fingerextending partly into the depression.

In testimony whereof I have signed my name to this speclficatlon 1n thepresence 10 of two subscrlbing Witnesses.

, JOHN G. SHAMBOW.

